There are conversations that stay with you because someone says something painfully obvious.

“Africa doesn’t have a water problem,” Constantine Edward tells me. “It has an infrastructure problem.”

It’s a simple distinction, but it explains why Constantine and his brother Herman alongside Faith Kuya walked away from aid-funded development, thinking to build SafeSip, a Tanzanian startup that treats clean water as a service that must pay for its own survival.

They speak softly, answer briefly, and rarely stray beyond the question they’ve been asked. Listening to them feels like listening to two brothers who have been solving problems together for so long that they no longer need many words.

Their work, they tell me, is not about donating millions of litres of clean water but about building a business that supplies it.